1I43:
reference: Crystal structures of cystathionine gamma-synthase inhibitor complexes rationalize the increased affinity of a novel inhibitor., Steegborn C, Laber B, Messerschmidt A, Huber R, Clausen T, J Mol Biol 2001 Aug 24;311(4):789-801. PMID: 11518531

This OCA Structure page
uses Jmol, developed by the Jmol Development Team (documentation).